Separation-flotation technology of rough sand and secondary slime of vein gold ores

A secondary slime and coarse sand technology, applied in the field of flotation technology, can solve problems such as increased waste gas treatment costs, high environmental protection pressure, and serious equipment corrosion, so as to improve resource utilization efficiency, increase gold recovery rate, and reduce environmental pollution. small effect

Inactive Publication Date: 2014-01-15
JIANGXI UNIV OF SCI & TECH
View PDF5 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The roasting oxidation method is characterized by strong adaptability. With the improvement of environmental protection requirements, the cost of waste gas treatment increases, and this method is subject to certain restrictions.
The disadvantage of the pressurized oxidation method is that the design and material of the equipment are very high, the equipment is corroded seriously, the maintenance level is also high, and the capital investment cost is large.
The disadvantage of nematode oxidation technology is that it is difficult to domesticate bacteria, the process operation conditions are sensitive, and bacteria are easy to die
The disadvantage of the all-slime cyanidation carbon slurry method is that highly toxic hydrocyanic acid will be produced during the acid treatment process, and a large amount of cyanide-containing waste liquid wil

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Separation-flotation technology of rough sand and secondary slime of vein gold ores
  • Separation-flotation technology of rough sand and secondary slime of vein gold ores
  • Separation-flotation technology of rough sand and secondary slime of vein gold ores

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030]The vein gold ore raw ore is subjected to grinding and classification operations consisting of grinding, primary classification, and secondary classification. The primary classification uses a Taylor standard sieve with a mesh size of 0.150mm, and the secondary classification uses a Taylor standard sieve with a mesh size of 0.044mm. Secondary graded coarse sand and secondary graded secondary slime;

[0031] The secondary graded coarse sand obtained from the grinding and grading operation passes through the flotation circuit composed of priority flotation, coarse sand roughing, coarse sand selection, coarse sand sweeping 1, and coarse sand sweeping 2. Amyl xanthate 40g / t, terpineol oil 30g / t; coarse sand sweeping 1, add isoamyl xanthate 20g / t, terpineol oil 15g / t; coarse sand sweeping 2, add isopentyl xanth 20g / t t, pine alcohol oil 15g / t; coarse sand roughing (6), coarse sand selection (7) do not add chemicals; coarse sand selection returns to the priority flotation, coa...

Embodiment 2

[0037] Grinding and classifying operation is identical with embodiment 1;

[0038] The secondary graded coarse sand obtained from the grinding and grading operation passes through the flotation circuit composed of priority flotation, coarse sand roughing, coarse sand selection, coarse sand sweeping 1, and coarse sand sweeping 2. Amyl xanthate 50g / t, terpineol oil 30g / t; coarse sand sweeping 1, add isoamyl xanthate 30g / t, terpineol oil 15g / t; coarse sand sweeping 2, add isopentyl xanth 30g / t t, pine alcohol oil 15g / t; coarse sand roughing (6), coarse sand selection (7) do not add chemicals; coarse sand selection returns to the priority flotation, coarse sand sweeping 1 returns the middle ore To coarse sand roughing, the middle ore of coarse sand scavenging 2 returns to coarse sand scavenging 1, and the underflow of coarse sand scavenging 2 enters the tailings, and the foam product and gold concentrate 2 of priority flotation are obtained;

[0039] The secondary graded secondar...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a separation-flotation technology of rough sand and secondary slime of vein gold ores. The separation-flotation technology is especially and mainly applied to ore dressing of the quartz vein type ores of gold-carrier ores, mainly iron pyrites. The separation-flotation technology includes the following steps of ore grinding grading operation, rough sand flotation operation, secondary slime flotation operation and combining forming operation of total gold ore concentrate. The recovery rate of gold of the obtained total gold ore concentrate is larger than or equal to 95.46%, the recovery rate of the gold is obviously improved, the use efficiency of resources is improved and the separation-flotation technology is small in use amount of medicaments and reduces environment pollution.

Description

technical field [0001] The invention relates to a separation-flotation process of coarse sand and secondary slime of vein gold ore, which is especially suitable for beneficiation of quartz vein type ore whose gold-carrying mineral is mainly pyrite. Background technique [0002] The world's gold reserves are about 40,000-64,115 tons, mainly vein gold, placer gold and polymetallic ore-associated gold, of which vein gold and placer gold account for 75%, and associated gold accounts for 25%. At present, the world's vein gold production accounts for about 65% to 75%, and the production of alluvial gold and associated gold accounts for about 25% to 35%. Among the geological reserves of gold in my country, vein gold accounts for 42.23% of the total reserves, placer gold accounts for 11.51%, and associated gold accounts for 46.26%. With the massive development and utilization of vein gold ore resources, there are fewer and fewer gold mines that are easy to select and process, and m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B03B7/00
Inventor 胡海祥范作鹏牛桂强
Owner JIANGXI UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap